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Author: Mikael Häggström [note 1]

Hyperkeratosis is thickening of stratum corneum.

In cases where hyperkeratosis is the main finding, look for the following:

Dysplasia and/or atypia

If suspected, also look for:


  1. For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Patholines:Authorship for details.

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  1. Weidner, Noel (2009). Modern surgical pathology . Philadelphia, PA: Saunders/Elsevier. ISBN 978-1-4160-3966-2. OCLC 460883320. 
  2. Nat Pernick. Oral cavity - Other benign tumors / conditions - Squamous papilloma. pathology Outlines. Topic Completed: 1 November 2013. Revised: 1 February 2019

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